102a, Warwick Way, Westminster, London, SW1V 1SD

102a is a mid-terrace house in Westminster, London, London (SW1V 1SD). It has a recorded floor area of 67 m² (around 721 sq ft), construction records dating it to 1900-1929 and council tax band D. At 67 m² this is the 3rd smallest of 7 units on EPC record in the building, where floor areas span 60–239 m². The building's EPC ratings span D to C, with this unit at the top. The latest certificate (July 2022) shows a C (score 70). When first surveyed in November 2008 the rating was D, the property has climbed 1 band since. Between certificates, wall efficiency went from Very Poor to Poor, window efficiency went from Very Poor to Average and lighting went from Very Poor to Very Good.

Untraded for 17 years, with the last transfer in March 2009. Across the public record there are 4 sales, relatively high churn for a single property. That sale fell during the post-crash dip, which often skews comparisons against later neighbouring sales. Across 1998–2009, sale prices on this property compounded at 7.4% per year. Today's modelled estimate of £520,000 sits 126.1% above the 2009 sale of £230,000. On a £-per-square-foot basis, the last sale (£319/sq ft) was about 48.5% below the postcode norm. Its energy rating outperforms most of the postcode (better than 70% of similar EPCs).